Title: Coprime inner/outer factorization of SISO time-delay systems and FIR structure of their optimal H-infinity controllers
Authors: Gumussoy, Suat # ×
Issue Date: Jun-2012
Publisher: Wiley
Series Title: International Journal of Robust and Nonlinear Control vol:22 issue:9 pages:981-998
Abstract: The approach in Foias et al. (1996) is one of the well-developed methods to design H-infinity controllers for general infinite dimensional systems. This approach is applicable if the plant admits a special coprime inner/outer factorization. We give the largest class of single-input-single-output (SISO) time delay systems for which this factorization is possible and factorize the admissible plants. Based on this factorization, we compute the optimal H-infinity performance and eliminate unstable pole-zero cancellations in the optimal H-infinity controller. We extend the results on the finite impulse response (FIR) structure of optimal H-infinity controllers by showing that this structure appears not only for plants with input/output (I/O) delays, but also for general SISO time-delay plants.
ISSN: 1049-8923
Publication status: published
KU Leuven publication type: IT
Appears in Collections:NUMA, Numerical Analysis and Applied Mathematics Section
× corresponding author
# (joint) last author

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